6 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 64776 | Osceola | 3,355 |
| 64724 | Appleton City | 1,942 |
| 64763 | Lowry City | 1,646 |
| 64738 | Collins | 1,375 |
| 64780 | Rockville | 361 |
| 64781 | Roscoe | 92 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 6 ZCTAs in St. Clair County, Missouri (US Census).